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relationship to

Albert II, prince de Monaco

...did not produce a rightful heir. On July 1, 2011, Albert married Charlene Wittstock, a competitive swimmer from South Africa. The couple had twins, Jacques Honoré Rainier and
Gabriella Thérèse Marie, on December 10, 2014. Although Gabriella was born first, Jacques was made crown prince in accordance with Monaco’s rules of succession.

Princess Charlene

...in the palace throne room. The following day a religious ceremony was held in the main courtyard on Palace Square. On December 10, 2014, the couple had twins, Jacques Honoré Rainier and
Gabriella Thérèse Marie. In accordance with Monaco’s rules of succession, Jacques was made crown prince, though Gabriella was born first.